import CryptoJS from "crypto-js";
export default {
   //随机生成指定数量的16进制key
   generatekey(num) {
       let library = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
       let key = "";
       for (var i = 0; i < num; i++) {
           let randomPoz = Math.floor(Math.random() * library.length);
           key += library.substring(randomPoz, randomPoz + 1);
       }
       return key;
   },
   
   //加密
   encrypt(word, keyStr) {
       keyStr = keyStr ? keyStr : 'abcdsxyzhkj12345'; //判断是否存在ksy，不存在就用定义好的key
       var key = CryptoJS.enc.Utf8.parse(keyStr);
       var srcs = CryptoJS.enc.Utf8.parse(word);
       var encrypted = CryptoJS.AES.encrypt(srcs, key, { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 });
       return encrypted.toString();
   },
   //解密
   decrypt(word, keyStr) {
       keyStr = keyStr ? keyStr : 'abcdsxyzhkj12345';
       var key = CryptoJS.enc.Utf8.parse(keyStr);
       var decrypt = CryptoJS.AES.decrypt(word, key, { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 });
       return CryptoJS.enc.Utf8.stringify(decrypt).toString();
   }
}